James h



(No Model.)

l JH.DOLAND.

Ventilating Apparatus.

No. 235,217. Patented Dec. 7,1880.

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NPETERS. PHOTO-UTMD-GRAPHER, WASHINGTON D C.

UNITED STATES PATENT Erica.

JAMES H. DOIJAND, OF MALDEN, MASSACHUSETTS.

VENTI LATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 235,217, dated December7, 1880.

Appnaaon filed september 3o, issu. (nwmodei.)

To all whom it may concern:

Be it known that I, JAMES H. DOLAND, of Malden, in the county ofMiddlesex and State oi' Massachusetts, have inventedcertain new anduseful Improvements in Ventilating Apparatuses, of which the followingis afull, clear, and exact description.

This invention relates more particularly to the ventilation ofwater-closets in dwellinghouses and other buildings.

It consists of the arrangement, Within the room to be ventilated, of achambered box adapted for being interiorly heated by the burning of gas,in the usual manner, or otherwise in any of the well-known modes ofheating, and also constructed for theair of the room to pass into it andto be therein heated, and from thence to pass upward and out of thebuilding' at any desired point, in combination with an independent flueor lines or passages, which at their lower end or ends open directly tothe4 effluvia and vapors arising from the water-closet in a manner toreceive such effinvia and vapors before they can escape into the room,and from thence are passed upward, so as to conduct such eftluv'ia andvapors upwardly about and by one or more sides or through the saidgas-burning or air-heating chamber without, however, allowing them toenter into or intermingle with the vapors or heated air within suchchamber, but in a manner for them to be heated by theburning gas orheatof such chamber, and to conduct them finally, in conjunction with theheated air, &c., from the air-heating chamber to the outside of thebuilding, all substan tially as hereinafter described.

In the accompanying plate of drawings, Figure l is a central verticalsection; Fig. 2, in part a face view and vertical section; Fig. 3,a'horizontal section. A

In the drawings, A representsl a ch ambered box, and B a gas-burnerarranged within it, to which gas-burner a pipe, G, conducts gas, all asusual in the burning of gas. This chambered box A has a door, D, forconvenience of entering it to light the burner, and this door isprovided with a glass plate, a, to allow the light of the gas-flame toenter the room in which the chambered box is placed. E, openings in thesides of the box'A for the air of the room to pass into the chamber ofthe box,

and thus to be heated by the burning of gas therein; F, a passageleading from the upper end of the gas-chamber A, and from thence,running upward, it opens into a passage, G. This passage Gis at the backand sides of the gas-chamber, and one of its walls makes the back andside 'walls of the gas-burning chamber A. This passage G, below thegas-chamber, is open to and to be in communication with the water-closetwhich it is desired to ventilate, and such opening and communication ofsuch passage should be so arranged as to secure the entrance of theeffluvia and vapors from the water-closet into such passage before theycan escape into the room, and above the gas-chamberAand the passage Fitruns to the outside of the building at any desired point. H H, passagesor flues passing upward through the gas-chamber and passage F, andopening at their lower ends into the back passage, G, below thegas-chamber, and at their upper ends into the passage G above thepassage F.

By this construction, combination, and arrangement of gas-chamber andpassages or fines F G H, obviously a most thorough and completeventilation both of a room and of a water-closet will be secured, forthe reason that by the heat of the gas-amea strong current is made fromthe room through the gas or heating chamber, and from the watercloset bythe back passage, G, leading thereto, all as is obvious without furtherdescription.

Although this invention has been particularly described in connectionwith water-closets, obviously it is applicable to the ventilation ofother places, rooms, Src., and that also other mediums than gas may beused for securing the heating ofthe air within the chamber A, and of theiiues or passages leading from the place to be ventilated.

The fines H H can be dispensed with, if desired, although it ispreferable to have them, as it presents more surface for the heat of thegas-flame, &c.

Having thus described myinvention, what I claim, and desire to secure byLetters Patent, 1s-

l. The combination, with the Ventilatingpassage G, of theheating-chamber A, located within but separated by its walls from saidpassage, and provided with openings E, for

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the admission of' air from the room or apartment, and a tlue, F, leadingfrom the top of the heatingchamber A and terminating above saidopenings, the said heating-chamber conilnlmcating with the passage Grsolely through thefmedium of the ue F, and the passage G opening belowthe heating-chamber to receive a current of air from other sources thanfrom the room with which the heatingchamber communicates, the said twocurrents meeting at the upper terminus of the une F within the passageG, substantially as described.

2. The combination, with a ventilating-passage, of the heating-chamberA, inserted in but separated by its walls from said passage, 15 andprovided with the openings E, flue F, and a through passage or passages,H, terminating above said openings.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing zo witnesses.

JAMES H. DOLAND.

Witnesses EDWIN W. BROWN, A. H. NoRRIs.

